No, AhsayRDR does not work with AhsayOBS server version 5.2.7.0. The member server needs to be post-5.5.3.0 in order to be re-directed to. Furthermore, yes, you do need to purchase license for the AhsayRDR module.

Also, if you're like us, all we really need is a bit of code added to the client to check a pre-config'd range of servers. Once the account is found, it would 'stick' to that one unless the account is again not found. That way, you wouldn't need a whole new server-side product to develop and maintain. Easier for partners to support as well.

Granted, it wouldn't do traffic redirection, but over time, that functionality becomes obsolete as clients are upgraded anyway.